Shaving implement



' Nov.'5, 1940. L JEPsoN suAvzwa :Hamam Filed May 21, 4193s PatentedNov. 5, 1940 UNITED STATES I smivrNG mLEMENr Ivar Jepson,V Chicago,Ill., assigner to Chicago Flexible Shaft Company, Chicago, lll., acorporation of Illinois Application Mey 21.1938, sensi No. 209,235

3 Claims.

This invention relates to shaving implements of the type known as dryshavers and has for its object certain improvements on the invention inthe patent to John Bruecker, No. 2,081,694.

One of the objects of the present invention is to provide a shavingimplement of the character described in which the perforated portion ofthe comb is slowly oscillated or moved back and forth while the cutteris in operation. The movement thus imparted to the comb supplements themotion imparted by the hand of the operator in moving the shaving headacross the face and this supplemental movement serves to moreeffectively work the beard hairs into the small openings and thusenhance the eilic'iency of the shaver.

Another object is to provide an improved structure and operating meansfor simultaneously operating the cutter and the comb for the purposeintended.

Other objects and attendant advantages will be appreciated by thoseskilled in the art as the invention becomes better understood byreference to the following description when considered in connectionwith the accompanying drawing, in.

which- Figure 1 is a longitudinal sectional view through the cuttinghead end of a shaving implement e bodying my invention; f

' 30 Fig. 2 is a face view of the comb, removed;

Figs. 3 and 4 are cross-sections taken substantially on the sectionlines 3-3 and 4-4 of Fig. 1;- and Figs; 5 and 6 are enlargedcross-sections through the cutting head showing the opposite positionsof the comb.

My invention contemplates slowly moving a.

curved or tubular comb back and forth upon andwith respect to thehousing or handle proper by means of which the comb is manipulated inthe shaving operation and this movement of the comb being simultaneouswith the operation of a cutter in cooperation with the inner side of thecomb. In the form here shown, the comb designated generally by II istubular and has a closely per- 55 fixed a gear I8 which is driven by agear I9 in turnV fixed to a power driven shaft 2| journaled in the bodystructure above mentioned. This shaft 2i may be theJ armature'shaft ofan. electric motor housed in the body structure. The motor is preferablyof such small size and the structure is so shaped and proportioned astoheld in the hand of the operator for manipulating the shaving implement.Upon the opposite end of the shaft Il is mounted a cutter holderdesignated generally by 22 equipped with one or more cutter` blades ofany suitable or preferredV construction adapted to be moved across theinner side of the perforated portion of the comb in shearing engagementtherewith. In the present case I have shown atvcutter blades 23' of the15 type and construction described in. my copending application SerialNo. 209,233 led May 21,1938. These blades are free to move radially andin the cutting operation each blade is pressed outwardly against theinner side of the perforated 20 portion ofthe comb by centrifugal forcewhich may, if desired, be supplemented. by the pressure of alight flatspring 24. In the embodiment here shown the cutter blades are rapidlymoved across the curved perforated portion of the combV in g5 shearingcoaction therewith by rotation of the head 22 driven from the armatureshaft 2| as above described. Simultaneously with this operation of thecutter blades the comb II is slowly oscillated by suitable means, such,for example, asv 30 a. driving train operated from the amature shaft 2I.As an illustration the shaft 2I has an extension 25 which is connectedthrough suitable intermediate reduction gearing 26 and 21 to aneccentric operating shaft 28 journaled in what may 35 be termed the gearcasing portion 29 of the housing structure. To this shaft 281s fixed aneccentric 3 I which operates a connecting rod or link 32 pivotallyconnected at 33 to the comb-carrying hub I3. The arrangement is suchthat upon each complete rotation of the shaft 28 and its eccentric 2|the tubular comb will be oscillated back and forth from the positionshown in Fig. 5 to the position shown in Fig. 6 and bsckto the startingposition shown in Fig. 5. As a further illustration referring to Fig. 3,it will be noted that the arc designated 34 represents approximately 68on the face of the comb which in this instance is the approzdmate widthof the perforated area. The comb will be oscillated approximately 68' ina .counterclockwise direction viewing Fig. 3 to the position denoted bythe arc 35; and then back again to the original position. This,back andforth movement of the comb is performed simultaneously with theoperation or the cutter and does not disturb the cooperative relationbetween the cutter and the comb. The relative speed of the cutter bladeswith respect to the com-b as well as the relative speed oi the comb withrespect to its supporting body may, of course, be varied. the intentionbeing that the comb shall be moved slowly back and forth atapproximately 100 complete oscillations per minute, or less than thisrate.

The -invention is not to be understood as re-` stricted to the detailsset forth, since these maybe modiiled within the scope of the appendedclaims, without departing from the spirit and scope o! the invention.

I claim:

1. In a shaving implement, vin combination, a comb of cylindricalconguration having a shaving area of extremely thin material providedwith closely positioned hair receiving openings, a cutter adapted tomove across the inner side of said shaving area in shearing engagementwith the inner edges of said openings, a holder for the cutter mountedto move about an axis coaxial with the longitudinal axis of saidcylindrical comb, means for operating the holder to move the cutter at ahigh rate of movement in said shearing engagement. and means operatingsimultaneously with the cutter operating means to oscillate the combabout said longitudinal axis at a slow rate of movement compared withsaid movement of the cutter.

